Ventilating device for store-windows.



B. P. BECK. VENTILATING DEVICE FOR STORE WINDOWS.

AIPL IOATION FILED AUG. 20, 1908 Patented July 6, 1909.

- ATTORNEYS BRADY F. BECK, OF LOOK HAVEN, PENNSYLVANIA.

VENTILATING- DEVICE FOR STORE-WINDOWS.

T 0 all whom it may concern:

Be it known that I, BRADY F. BECK, a citizen of the United States, and aresident of Lock Haven, in the county of Clinton and State ofPennsylvania, have made certain new and useful Improvements inVentilating Devices for Store-Windows, of which the following is aspecification.

My invention relates to means for ve11tilating show windows of stores,and it consists in the combinations, arrangements and constructionshereinafter described and claimed.

An object of my invention is to provide an efficient means forpreventing the frosting of store windows in cold weather. In regions ofcontinued cold, great annoyance is caused by the accumulation of froston the inside of a store window, thereby obscurin the view of the goodscontained within. the window. The cause of the accumulation of frost onthe window is the condensation and subsequent freezing of the moisturecontained in the warm air of the room or store, this condensation beingcaused by the warm moistureladen air coming in contact with the coldwindow.

In carrying out my invention I provide a ventilating means, whereby theinside of the window is constantly ventilated by means of a stream ofcold dry air, which is played over the surface of the window andeffectually prevents the warm moisture-laden air from coming in contacttherewith. This prevents the formation of frost, since the moisture doesnot have a chance to reach the cold window.

My invention is illustrated in the drawings,

in which- Figure 1 is a front view of the exterior of a Window providedwith my invention. Fig. 2 is a perspective view of a section takenthrough the window and sash along the line 22 of Fig. 1, and Fig. 3 is asection showing a different form of the ventilating opening.

Referring now to Fig. 1, I have shown therein a portion of a storewindow A, provided with upper and lower sash parts 1 and 2,respectively. Through the upper portion 1 of the sash I bore a series ofholes 3. Each of these holes is about three-quarters of an inch indiameter, and they are spaced approximately five inches apart. Theseholes are located above the edge of the gass as clearly shown in Fig. 2.

On the inner side of the upper part 1 of the sash, I fasten a deflectingstrip 4. This strip Specification of Letters Patent.

Application filed August 20, 1908.

Patented July 6, 1909.

Serial No. 449,400.

may be in any convenient form, but is de signed to deflect the aircoming in through the opening 3 around the molding 5 and to spread itout along the surface of the glass 6. This deflector f is attached tothe sash by means of the screws 7, which pass through an upwardlyextending flange 8.

Through the bottom sash strip 9 of the window, I bore a series ofupwardly inclined holes 10, which preferably pass through the molding11, as shown in Fig. 2. Immediately above the upper end of this openingis the deflecting plate 12, which may be of a curved form as shown inFig. 2, or, it may be a flat, inclined strip as shown at 12 in Fig. 3,or it may have other convenient forms, the main object being to providea deflecting plate which serves to spread out the air along the surfaceof the glass and at the same time should present a neat and ornamentalappearance.

In Fig. 2 I have shown the bottom sash member 9 as projecting above theline of the floor 18, the glass being held between the member 9 and themolding 11. In Fig. 3 I have shown the arrangement where the glass isheld between the flooring and the bottom member 9 of the sash. In thisarrangement the inclined hole 10 meets a vertically extending hole 14,which is situated directly underneath the deflecting plate 12 Theoperation of the device may be readily understood from the foregoingdescription of the various parts. The air enters through the holes 3 and10. The space between the deflecting members 12 and 2 and theirrespective moldin s 5 and 11, provides a com mon air channe, in whichthe air coming through the holes is mixed and then passes upwardly ordownwardly, as the case may be, along the entire upper and lower edgesof the glass plate 6, thereby preventing the warm moist air from comingin contact with the window. It will be noted that there is a continuousopening along the entire edge of the glass plate between the latter andthe deflector, so that the air is distributed evenly over the entiresurface of the glass. I regard this as a very important feature of myinvention, since, if it were permitted to be distributed at separatepoints as has been proposed, the frost is sure to gather on the windowbetween the air ports as has been proved by actual experience.

I claim In a window ventilator, upper and lower window sash members, theupper sash memchannel in communication with said inclined ber having aseries of horizontal openings passages, the ed es of said upper andlower therethrough, a common deflector plate cardeflector plates eing inclose proximity to ried by said upper sash member forming a the innerside of the pane of glass, thereby 15 5 common channel in communicationwith deflecting the iii-coming air in continuous said horizontalopenings, the lower Window thin sheets toward the center of the window.

sash having a series of inclined passages therethrough leading from theunderside of BRADY BECK the sash, a pane of glass carried by saidWitnesses:

10 window sash, a deflector plate secured to the LEON R. KLEPPER,

floor of the window and forming a common I. A. SIIAFFER, Jr.

